Best Keto Calculator Apps

245+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated September 2026

With an average user rating of 4.4★, the keto calculator category is one of the App Store's strongest. Browse all 245+ apps we track, sorted so the most loved ones surface first.

Compare top Keto Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Carb Manager: Keto & Macro LogCarb Manager: Keto & Macro LogFree4.8★ (733K)NoYesOct 2026
2Keto Calculator - Keto BuddyKeto Calculator - Keto BuddyFree4.6★ (8.4K)NoNoSep 2026
3Stupid Simple Keto Diet AppStupid Simple Keto Diet AppFree4.6★ (8.9K)NoYesOct 2026
4Keto diet app-Low carb managerKeto diet app-Low carb managerFree4.6★ (62K)NoYesOct 2026
5Keto Diet App - Carb TrackerKeto Diet App - Carb TrackerFree4.7★ (82K)NoYesOct 2026
6Keto Diet App: Keto ManagerKeto Diet App: Keto ManagerFree4.7★ (9.4K)NoYesOct 2026
7Keto-RecipesKeto-RecipesFree4.5★ (197)NoYesAug 2026
8Keto Diet app. Carb counterKeto Diet app. Carb counterFree4.6★ (313)NoYesAug 2026

Top Picks for Keto Calculator

Carb Manager: Keto & Macro Log#1

Carb Manager: Keto & Macro Log by Wombat Apps LLC

Calorie Counter & Diet Tracker
Editor's Choice
💪 Health & Fitness
4.8😊(733K ratings)
FreeIn-App Purchases
Carb Manager: Keto & Macro Log screenshot 1
Carb Manager: Keto & Macro Log screenshot 2
Carb Manager: Keto & Macro Log screenshot 3
Carb Manager: Keto & Macro Log screenshot 4
Carb Manager: Keto & Macro Log screenshot 5
Carb Manager: Keto & Macro Log screenshot 6

Easily track carbs, macros, and calories for low-carb and keto diets. Features include barcode scanning, recipe access, and community support to help you achieve your health goals.

What We Love

  • 🚀 Easy to use
  • 🔒 Comprehensive tracking
  • 👍 Helpful for keto/low-carb diets
  • 👍 Useful recipes and meal plans
  • 👍 Syncs with fitness devices
  • 👍 Detailed macro and nutrient breakdown

Room to Improve

  • 🐛 Inaccurate food database
  • 🐛 Buggy and crashes frequently
  • 🐛 Clunky interface and navigation
  • 🔒 Paywall for many features
  • 👎 Limited metric options (e.g. grams)
  • 👎 Slow performance and loading times
Keto Calculator - Keto Buddy#2

Keto Calculator - Keto Buddy by Compumaster Ltd

Keto/low carb macro calculator
Strong Contender
💪 Health & Fitness
4.6😐(8.4K ratings)
Free
Keto Calculator - Keto Buddy screenshot 1
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Keto Calculator - Keto Buddy screenshot 3
Keto Calculator - Keto Buddy screenshot 4
Keto Calculator - Keto Buddy screenshot 5

Calculate your ideal macronutrient intake for ketogenic and other low-carb diets. This free tool helps you determine the right balance of fat, protein, and carbohydrates based on your individual goals and needs.

What We Love

  • 👍 Good so far
  • 👍 Convenient and easy to use
  • 👍 Helpful resource
  • 👍 Precise and informative

Room to Improve

  • 🤔 Confusing interface
  • 🤔 Lacks functionality
  • 💰 Expensive
  • 🤷‍♀️ Doesn't work as expected
  • 🔍 Hard to read results
Stupid Simple Keto Diet App#3

Stupid Simple Keto Diet App by Venn Interactive, Inc.

Low Carb Diet & Macros Manager
Worth Considering
💪 Health & Fitness
4.6😊(8.9K ratings)
FreeIn-App Purchases
Stupid Simple Keto Diet App screenshot 1
Stupid Simple Keto Diet App screenshot 2
Stupid Simple Keto Diet App screenshot 3
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Stupid Simple Keto Diet App screenshot 5

This app helps you track carbs and calories to achieve weight loss and maintain a ketogenic lifestyle. It offers easy food logging, progress tracking, and support for custom foods and fasting. Certified diet coaches are also available.

What We Love

  • 🚀 Stupid simple to use
  • 👍 Easy to track macros
  • 👍 Helpful for keto diet
  • 👍 Customizable
  • 👍 Excellent customer support
  • 👍 Affordable one-time fee
  • 👍 Motivating progress tracking

Room to Improve

  • 🐛 Sync and login issues
  • 🐛 Inaccurate food data
  • 🐛 Confusing navigation
  • 🐛 Frequent app crashes
  • 🔒 Privacy concerns with data
  • 💰 Limited features in free version

More Keto Calculator apps to explore

FAQ about Keto Calculator

What are the best keto calculator apps for iPhone?
Carb Manager: Keto & Macro Log tops our keto calculator apps ranking as of September 2026, with a 4.8-star average from 733K App Store ratings, and it's free to download.
Yes — 20 of the top keto calculator apps we rank are free to download, including Carb Manager: Keto & Macro Log and Keto Calculator - Keto Buddy.
Carb Manager: Keto & Macro Log has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 245+ keto calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

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